Still, Melania, who said shortly after Barron was born that giving birth was "very, very easy," admits that it can be challenging to make time for her marriage to Donald Trump, motherhood and herself.

"It's combining the whole thing together," she said. "It's another person that we have to take care of. It's exciting, but it's responsibility too."

How did she and The Donald celebrate Barron's March 20 birthday? Melania says they went to Mar-a-Lago, Trump's Palm Beach, Fla., resort where they wed in 2005, and gave their son special - and top secret - present.